|stability AND formul*|
|These two searches are the same. They both find
containing stability and any term beginning with formul.|
|modeling OR simulation||Finds articles containing either term.|
|waveform (modeling OR simulation)||Finds articles containing waveform and either
|waveform NOT acoustic||Finds articles containing waveform but
|"data acquisition"||An example phrase search.|
Note: boolean operators are capitalized for clarity only.